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Reissued Jan. .30,1923.

UNITED STATES JAMES BYRON ATKINS, 0F AKRN. OHIO, ASSIGNG'P RUBBER COHEPANY, Gi' AKON, OHI, A CLE'U Driginal No. 278.822, dated SepL-.mber i7, www reissue flied Scpcmber UCT U hppheatisn *Tax 1926. Seal Nfl 10,778.

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aux whe my A uml U11*- manufacturer plishing such results unless they be modili-d in accordance with the disclosures hercin. rlheoverlapping flanges of previous side rings would be quite helpless to prevent a twisting oi the ring in its rim channel,`were it not for the firm fastening of the extremities of the split ring t0 the rim base.

l'Vhat I claim .isz

l. A rim-structure including an annular base-member 4formed with an integral outstanding annular flange and with an integral depending portion rovided with a relatively deep ring-seatm channel and formed with unaligned shoul ers spaced apart by the channel, one of the shoulders being i'ormcd by Aan outstanding section of the channeled seating' portion, and a flange-ringA separably associated with the channel and formed at one sidewith an elongated Wall engaging bearing'surface and with an anguiar overhanging bearing surface, thel elonvated Surface contacting with one Wall of the channel and the overhanging sur face engaging with the shoulder on an outstandinr section of the channeled seating portion. the ring being formed on its opposite side with a: curved bearing face to engage the correspondingly-formed shoulder on the depending seatin portion, whereby twisting movement of t le flange-ring in its seat is prevented. Y

2. A rim-structure comprising an annular base member/having along one side thereof an outwardly projecting integral annular flange and having along its other side an inwardly projecting,r integral annular offset provided with an endless channel formed oblique to the outer face of said base member, and a, one-piece s'plit liangc-ring hav-l iiig an inherent contractile resilience so that it ran be sprung into, place into said chan nel und maintain itself against dislodfvment from its seat in said! channel, said filing@- 1-ing havin r on opposite sides thereof an` iuilar shon ders which provide a twopoint bearing on the channel sides for maintain ing said flange-ring against twisting movement.

3. A vehicle rim-structure comprising an annular base-memberprovided at one edge thereof with a straight-sidetire retaining flange. and an annular channel formed by the other edge portion of the base-member, the 4outer wall of the channel being inwardly inclined relatively/to the tirelengaging surface of the rim and laterally offset therefrom; and a one-piece split ring having` inhercnt contractile resiliency and embodyinhr an oblique annular portion adapted to enter the channel. an annular straighbside-tire retaininglr flange, and an annular shoulder intermediate the oblique portion and the ilangge and adapted to seat on the outstanding wail ol the channel. said oblique por-V fion. beingI spaced from the bottom of the channel in order to insure seating of the annular shoulder of the ring onthe peripheral surface of the outstanding channel wall. y

'4. A vehicle rim-structure for tires coinprisin an annular base-member provided at one e ge with an annular channehthe inner face of' the outer wall of the channel being inwardly inclined relative to the tirecngaging surface of the base-member, and a one-piece split ring havin inherent contractile resiliency and embof ying an annular channel-entering portion.Y an annular tireretaining flange, and an annular outstanding portion intermediate the flange and channel-entering portion and` presenting,r a seating instrumentality distinct from the flange and. adapted to seat on the outstand ing wall of the channel, the channel-entering` portion being spaced from the bottom of the channel to insure seating of the outstanding portion of the ring on the outstanding ,channel wall.

5. A vehicle rim-structure for tires corn- 4prisingan' annular base-member provided Jat one edge'with a tire-retaining flange and an annular channel formed by the other ethic-portion of the base-member,` the outer i a l of the Vchannel being inwardly inclined relative tothe tirelengaging surface of the bese-member and laterally and radially oli'- set therefrom, and a one-piece split ring havin inherent contractile resiliency and elnbo'ying an annular oblique channel-en tering portion, an annular tire-retaining flange, and an annular portion intermediate the flange and channel-entering portion and presenting a seating instrumentalit adapted to Seat on the outstanding wal of the channel, the channel-entering portion being spaced from the bottom of the channel to insure seating of the outstanding portion of the ring on the outstanding channel wall.

6. A vehicle rim structure for tires having straight-side bead portions comprising, `a rim Abase having an annular channel formed in one of yits marginal portions, the outer wall of said channel being inwardly inclined relative to the tire-engagin surface of the rim base yand 'laterally an. radially offset therefrom, anda one-piece split self-retaining flange ring having inherent contractile resiliency and embodying; a tire-engaging Hangman annular shoulder adapted tolseat on4 the peripheral face of the outer wall 0f the channel beyond the planeet the outer edge of the base of the tire, and an oblique Iannular portion' adapt-ed to enter the channel to engage the inner face of the outer wall of the channel. said oblique ortion being spaced from the bottom of the channel to insure the seating of the annular shoulder-of thcring on the peripheral face of the outer wall of the channel.

7. A vehicle rim-structure for tires com prising an annular base-member provided neo at one edge thereof witn a straight-side-tire retaining flange, and an annular channel formed b the other edge portion of the base-mem er, the outer wall of the channel being inwa'rdlv inclined relative to the tireengaging surface of the rim and laterally offset therefrom, and a one-piece split ring havin inherent contractile resiliency an( emboi ying an` 'oblique annular portion adapted to 'enter the channel, an .annular tire-retaining fiange formed with an annular portion adapted to seat on the outstanding wall of the channel, and an annular inwardly extending twist-preventiiv mrtion, said obliquo portion being s aee rom the bottoni. of the channel in ori er. to insure seating of the annular shoulder of the rinr on the peripheral surface of the outstan( ing channel wall.

H. A vehicle rim-Strncturefor tires rompriaing an annular at one edge with an annular channel, the inner face of the wall of which is inwardly inclined relative to the tire-engaging surface of the base-member, and a one-piece s litl ring havin inherent contractile resiliency and emodyingan annular tire retaining tiange, an annular vhannelentering portion, and an annular outstandnr port-ion intermediate the flange and rhanne entering port1on,'said two portions prebase-meniber provided senting. singularly-disposed engaging surfaces distinct from the flan e, the one seat ing on the outstanding' wal of the channel and the other beari against said inwardly inclined faee thereo the channel-entern portion being spaced from the bottom o the channel to insure seating of the outstanding portion of the ring on the outstanding channel wall. V

9. A vehicle rim structure for tires 'having straight-sidebead portions comprising, a rim base having an annular groove formed in one of marginalportions, said groove having a radially offset outer wall, and a. removable single-piece split rin having a tire retaining fiange, apart o said rm being adaptedy to seat onl the periphera face of said outer wall, tle ri having a groove enterin portion a apte to en the inner ac of said outer wall gsid groove, entering portion beingv spat-ed from the bottom of said groove, and a portion of said ring bein adapted -to seat 'on the inner side of'said c annel.

In witnessv whereof, I4 hereunto sign my name in the presence of two-subscribing witnesses.

JAMES BYRON ATKINS.

Witnesses; H. S. Kaalomm'UM, WM. C. MoUor.

Certificate 0f Correction.

Slgnwi zuri .wulwl this 5th (luy of August, A. l), 1924.

{5551K} K I N NIXN,

Actzfng Commzlsawwr of Patents. 

